Drag-saw.



- 'PATENTED DEC. 5, 1905.

1 H. WHITE.

DRAG SAW.

APPLICATION FILED MAY 12, 1904.

. UNITED STATES HENRY WHITE, or MARION, OHIO.

DRAG-SAW.

No. soe,3s2.

Specification of Letters Patent.

' Patented Dec. 5, 1905.

Original application filed May 13, 1903, Serial No. 157,004; Divided and this application filed May 12, 1904. Serial No. 207,650.

To all whom it may concern Be it known that I, HENRY WHITE, a citizen of the United States of America,"a nd a resident of-Marion, county of Marion, and

the following is a specification.

My invention relates to an improvement in drag-saws, and more particularly to that class of saws drivenb'y a motor and which L can be easily transported from place to place as needed.- r v v To this end my invention consists princig pally in the provision of a suitable framework for supporting and guiding the saw in its movements, together with certain details of construction and combinations of parts, such as will be more fully described hereinafter, and particularly set forth in the claims.

In the accompanying drawings, Figure 1 is a view in side elevation of my invention. Fig

2 is a view in end elevation; Fig. 3 is a perspective view of the cross-head which slides on the frame and supports the saw, and Fig. 4 is a top planview of the machine.

This application forms a divisional part of my application filed May 13, 1903, Serial No. 157,004, and hence I do not show in this application the motive means for the saw.

A indicates theframework consisting of parallel guide-rods 1 1, preferably connected and braced at their ends and intermediate their ends by the webs 2, 3, and 4*, respectively, These braces or webs are each pro-' vided at their opposite ends with split sleeves 4 4, adapted to embrace and be adjustably secured upon the uide-rods 11. Located intermediate the a justable braces 2 and 3 is a cross-head 5, driven or reciprocated onthe guide-rods inany suitable manner, thejcldsshead consisting, preferably, of a casting provided at opposite ends with split sleeves 6 6, slidingly secured upon the guides 1 1',- which guides may be hollow or solid and of any suitable conformation in cross section, as desired. The cross-head is provided with a socket '7 for-the reception of one end of the traveling guide-rod :8, which extends rearwardly between thesides'of the web or brace 3 and is threaded at its rear end to receive the stud 9, which stud is provided with a split sleeve 10, slidably secured on one of the guides 1. The split sleeve 10 in connection with the split sleeves 6 6 form distant bearings for the cross-head 5, and materially aid in maintaining its reciprocatory movement in a true line. The rear face of the crosshead is also provided with an aperture 11, in which is received and secured a piston-rod '12 or other suitable driving means, which rod projects through therecessand is removably retained in position by means of a nut 13, 10-

cated in a cross-slot 14, intersecting the aperture 11. The front f'a'ce of the cross-head is provided with apertured wings 15,- between which is held one end of the saw-blade B, the latter provided with apertures registering with those formed in the wings and adaptedto receive bolts or other fastening means. V

The web or brace 2 consists of a double bracket the opposite ends of which carry the split sleeves, the bracket and sleeves formed,

preferably, of one casting, the sawblade B extending an reciprocating between the sidesofthe bracket. A journal-pin 16 extends between the sides ofthe bracket 2 and supports an antifrictiori-roller -17,' against which theback of the saw-blade bears and 4 whereby it-is supported during its reciproca tions.

The guides 1 1 are provided with bufiers or cushion-sleeves 18 18, against which the split g sleeves of the cross-head impinge at one limit of movement of the cross head, a similar sleeve 18 being located on the guide on which the sleeve 10 'reciprocates, the latter cushion saw-blade to guide and retain itin alinement.

This dog-bar extends from the rearfbrace to a point beyond the frame in advance of bracket 2. A lever 24, rovided with an 0&- set portion 25, is pivotal y secured to the dogbar 21, intermediate the 'ends of the latter,

the lever projecting on either side of the dogbar, and having a handle 26, formedat one end for its manipulation. Links 27 are pi'votally secured to'the opposite end of the lever and to the brace 3, thepur-poseof which 1 construction is toreg'ulate'fthe feed of' the saw. This is accomplished by raising or low,

Y ering the level which, in view of the link connection between the lever and the-frame A,

rro

will raise or lower the latter, together with the saw, the framework being pivoted on its rear end as a center, the weight of the forward end being supported on the dog-bar and dog engaging the log being out.

It will be observed that many changes might be made in the form and arrangement of the several parts described without depart ing from the spirit and scope of my invention, and hence I do not wish to limit myself to the exact construction herein set forth; but,

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. A drag-saw comprising a frame, a crosshead movably mounted thereon, a cutting member secured to the cross-head, trunnions mounted on the frame, an apertured springfork received on the trunnions, a dog bar connected to the fork and a slotted dog carried by the bar, the cutting member reciprocating in the slot in the dog.

2. The combination with a frame and a cutter mounted to reciprocate therein, of a dog-bar pivotally secured to the frame, a dog carried by the bar and engaging the work and adapted to maintain the dog-bar rigid with the work, a lever pivotally secured at a point between its ends, to the dog-bar at a point intermediate the ends of the latter, and a link connecting one end of the lever to the frame at a point intermediate the ends of said frame for the purpose of raising and lowering the frame and cutter in the arc of a circle on the rear end of the frame as a center to regulate the feed of the cutter, the dog-bar serving as a stationary support for the frame and cutter during such adjustment.

3. The combination with a frame, of a cutter maintained in constant parallelism therewith, a dog-bar pivotally secured to'one end of the frame, a dog carried by the dog-bar and engaging the work and adapted to maintain the dog-bar rigid with the work, and a lever-and-link mechanism connecting the dogbar and frame for raising or lowering the frame and saw in the arc of a circle to regulate the feed of the cutter to the work, the dog-bar serving as a stationary support during such adjustment.

4. The combination with a frame, of a cutter maintained in constant parallelism therewith, a dog-bar pivotally secured to the frame, means for rigidly securing the forward end of the dog-bar to the work, a lever pivotally connected to the dog-bar and means connecting the lever and frame to permit the latter to be bodily raised and lowered in the arc of a circle on one end as a center to adjust the feed of the cutter relative to the work, the

, dog-bar remaining stationary and serving to support the frame and cutter .during such adiustment.

5. The combination with a frame,of a cutsoase ter carried thereby and maintained in constant parallelism therewith, a dog-bar pivotally secured to the frame, means for rigidly securing the free end of the dog-bar to the work, and means connecting the dog-bar and frame for bodily raising or lowering the frame and cutter for regulating the feed of the latter, the dog-bar remaining stationary and supporting the frame and cutter during such adjustment.

6. The combination with .a frame, of a cutter carried thereby and maintained in constant parallelism therewith, trunnions mounted at one end of the frame, a dog-bar embracing the frame and journaled on the trunnions, means for securing the dog-bar to the work against movement, and link-and-lever mechanism connecting the frame and dogbar for bodilyraising and lowering the frame, and cutter for adjusting the feed of the latter, the weight of the frame supported by the dog-bar during such adjustment.

7. The combination with a frame, of a cutter carried thereby and maintained in constant parallelism therewith, a dog-bar, a fork located at one end of the bar, the free ends of the fork pivotally secured to the frame, a forked lever pivotally secured to the dog-bar and links connecting the forked ends of the lever to the frame.

8. The combination with a frame, of a cutter maintained in constant parallelism therewith, a dog-bar pivotally secured to the frame at one end, a forked dog carried by the dogbar, the cutter passing between the legs of the dog and means connecting the dog-bar and frame for simultaneously raisin g or lowering the latter together with the cutter.

' 9. The combination with a frame, of a cutter carried thereby, a dog-bar pivotally secured to the frame, means for retaining the dog-bar immovably in engagement with, the work, and means connecting the dog-bar and frame for bodily raising and lowering the latter to regulate the feed of the cutter relative to the work, the cutter moving in the are of a circle, the weight of the frame supported on the dog-bar.

10. The combination with a guide-frame, and a cross-head the cross-head provided with sleeves engaging the guide-frame and reciprocating thereon, of a tool secured to the cross-head and normally tending to tilt the cross-head with relation to its guideframe and cause it to bind, and means formed independently of and connected with the cross-head and with the frame at a point distant from the sleeve for maintaining the crosshead in proper position with relation to the frame at all times and preventing such tilting movement.

11. The combination with a guide-frame, a cross-head, and sleeves carried by the crosshead for engaging the guide-frame and recipiocating thereon, of a tool secured to the cross-head, the tool subject to strain which slidingly mounted on the guide-frame at a point some distance from the sleeves and formed independently thereof, and rigid means connecting the cross-head and guide member to prevent the tilting of the crosshead and counteract the strain imposed thereon by'the tool.

a cross-head, sleeves secured to the cross-head and slidingly received on the guide-frame,

and a tool secured at one end to the crosshead and projecting some distance therefrom in one direction, of means formed independently of the sleeve and slidingly engaging the guide frame, the means located some distance away from the sleeve in a direction opposite to that in which the tool'extends and rigidly connected to the cross-head to assist the cross-head in sustaining the tool.

13. The combination with a guide-frame, a cross-head, sleeves connected to the crosshead and slidingly engaging the guide-frame, and a tool secured to the cross-head and'normally tending'to tilt the cross-head with relation to its guide-frame and cause it to bind,

of a sliding member formed independently of the sleeve and'loosely mounted 'on the frame, 7

and a connecting-rod-secured at its op osite endsto the cross-head and to the siding member respectively, the connecting-rod extending in a direction parallel to the guideframe.

14:. The combination with a guide-frame,.

a on the frame at a point distant from the 12. The combination with aguide-frame,

sleeves, the sliding member provided with a socket, the cross-head likewise provided with a socket, and a connecting-rod extending parallel with the guide-frame, the opposite'ends of the connecting-rod received in the respective sockets.

15. The combination With a guide-frame, a cross-head, extending across the guideframe, sleeves at the opposite ends of the cross-head the sleeves sliding on thevframe, and a tool secured to the cross-head, of a member -slidingly received on the guide-frame at a point in rear of and some distance away from the cross-head sleeves and ri id means extending parallel with the'guideame and connecting the cross-head and member to resist. a tilting of the cross-head;

Signed a't Marion this 27th day of February, 1904.

HENRY WHITE. Witnesses: A J. F. MONEAL,

J. OoBBoLD. 

